baber/WOPTO huggingface dataset:
Patent GB-1389576-A (GB)
Title: Liquids sampling device and method of liquids sampling
IPC: G01N33/38
Filed: 1972-06-24
Abstract: 1389576 Sampling liquids CEMENT & CONCRETE ASSOCIATION 21 Sept 1973 [24 June 1972] 29727/72 Heading B8N A liquids sampling device (for sampling fresh concrete) comprises a tube 10 whose upper end constitutes a weir over which the liquid to be sampled flows into, for example, a concentric collector 11, and means, such as two or more channels 16, for directing a predetermined portion of the liquid flowing over the weir into a sample collector 12. A weight of fresh concrete may be loaded into the tube 10 and then caused to move upwardly and over the weir by water which is drawn from a tank 22 and supplied through a pipe 40 by a pump 21. The main flow over the weir passes into the collector 11 which is provided with a discharge pipe 13. The portion of the flow channelled off by the channels 16 passes to the sample collector 12 which is provided with a discharge pipe 14 for delivering the sample to a conditioning vessel 24 having a sieve 23, a stirrer 25 and syphon tubes 27, 28.
Patent GB-229408-A (GB)
Title: Improvements in or relating to wire screens suitable for use with electric and otherheating devices
IPC: H05B3/00
Filed: 1923-11-26
Abstract: 229,408. Berry, A. F. Nov. 26, 1923. Baffles; supports for articles to be. heated.-A wire screen suitable for supporting a utensil above a gas flame comprises a piece of woven wire a of circular or polygonal shape secured along its edge or edges to metal bars b free to move relatively to one another and each of which is secured to stretching means acting at all times to exert an outward pull thereon and hold the screen flat and taut in all directions. The adjacent ends of the bars are fitted together in tongue and groove fashion. The stretching means comprises springs d, riveted together at adjacent ends e and secured at the centre to the bars b by screws c. Plates f are provided at the points e to embrace the ends of the bars b.
Patent GB-533475-A (GB)
Title: Improvements in or relating to systems for transmitting a band of frequencies
IPC: H04J1/12
Filed: 1939-11-09
Abstract: 533,475. Modulating systems. PHILIPS LAMPS, Ltd. Nov. 9, 1939, No. 29764. Convention date, Nov. 10, 1938. [Class 40 (v) ] In a modulation system in which only the upper side band is transmitted, interference from third-order modulation products is prevented by using a carrier frequency substantially equal to half the difference between three times the highest signal frequency and the lowest signal frequency. The Specification as open to inspection under Sect. 91 also refers to systems in which the lower side-band, with or without the other side-band and the carrier, is transmitted, and in such systems the carrier frequency is chosen substantially equal to twice the highest signal frequency. This subject-matter does not appear in the Specification as accepted.
Patent GB-683580-A (GB)
Title: Timing mechanism for controlling a sequence of operations
IPC: H01H43/12
Filed: 1950-12-05
Abstract: 683,580. Time switches; electromagnetic switches. AMERICAN LAUNDRY MACHINERY CO. Dec. 5, 1950, No. 29806/50. Class 38(v) [Also in Groups VIII and XXXVIII] A sequence of operations, e.g. in a washing machine, is controlled by the step by step rotation of a cam shaft 35 by an electromagnet 33, impulses to which are delivered at times determined by the engagement of a continuously moving finger 29 with a series of adjustable pins or timing members 30. The pins 30 form a circle and are inserted between the inwardly directed teeth of, say, four annular gear wheels 93, 94, 95, 96, Figs. 3, 10, arranged side by side and individually adjustable by knobs such as 94c which rotate gear wheels such as 93a, each gearing with outwardly directed teeth on a wheel such as 93. In the form shown two pins are inserted in each wheel 93-96, and it will be seen that while the interval between two pins on any one wheel is not easily changeable, the interval between pins on different wheels is readily adjustable by rotation of a knob such as 94c. Thus in washing machines, it is possible to adjust the times of certain operations while leaving other operations unchanged. The finger 29 is carried by a switch 28 mounted on a plate 27 which is rotatable about the axis 35 by a motor which drives a pinion 57 coupled to a sleeve 56 carrying the plate 27. Each time the finger 29 engages a pin 30, the switch 28 completes a circuit to the electromagnet 33. At the end of a cycle a spring finger 66 enters a slot in a flange 67 allowing parts 56, 57 to become uncoupled whereupon a weight, Fig. 4 (not shown) rotates plate 27 and switch 28 back to the starting position. The electromagnet 33 has a plunger 34, Fig. 5 linked to an arm 79 with gearing 76 which drives a gear wheel 73 which has a one-way driving engagement with a wheel 74 fixed on the cam shaft 35. To prevent overrunning the wheel 74 has a stepped portion 74b engageable by a stop 83 movable with the plunger 34. At each impulse supplied to the electromagnet, the cam shaft 35 is rotated through one step and corresponding valves controlling washing operations are actuated by cams (not shown) on the shaft. A cam 45 also keeps the circuit to the motor 23 closed during the cycle and another cam 46 sets in operation a high speed motor 49 or a slow speed motor 50 for the washing machine at suitable times.
Patent GB-410813-A (GB)
Title: Process for the isolation of piperitone
IPC: C07C45/80
Filed: 1932-10-25
Abstract: Piperitone is isolated from essential oils containing it by forming its addition compound with orthophosphoric acid and decomposing the compound into its components.  The addition compound contains one molecule of piperitone for each molecule of phosphoric acid; it is sparingly soluble or insoluble in the terpene constituents of essential oils but is readily soluble in orthophosphoric acid. Racemisation of the piperitone may be avoided by operating at a low temperature, e.g. 0--10 DEG  C., employing an excess of the phosphoric acid and keeping the time of contact of the reactants as short as possible.  A solvent, such as a liquid hydrocarbon, may be present.  The addition compound, or its solution in phosphoric acid, is decomposed by water into piperitone and a diluted acid which can be concentrated for re-use.  Examples are given of the isolation of piperitone from Eucalyptus Dives oil.  Specifications 374,893 and 392,571 are referred to.
Patent GB-520286-A (GB)
Title: Improvements relating to the indication of the speed of movement of bodies such as ships relative to fluids
IPC: G01P5/16
Filed: 1938-10-15
Abstract: 520,286. Pressure gauges. PETROFF, A., and IMPROVED SUBMERGED LOG CO., Ltd. Oct. 15, 1938, No. 29932. [Class 106 (ii)] [Also in Group XXIX] Means for indicating the speed of ship; &c. relative to fluids comprises a Pitot. tube and a static pressure tube connected respectively to upper and lower Bourdon tubes 28 carried by a common post 29; the upper tube 28 acts through a link 33, lever 34, long link 35 and short link 47 carried by a post 46 adjusted by a graduated screw &c. 32, the link 35 acting through a pivot 54 and arcuate slot 56 to rock a toothed sector 41 which drives a spring-pressed indicating pointer through a pinion. The free end of the lower tube 28 is connected through a link with a pivoted lever carrying the pivot 53 of the lever 34 whereby the readings of the pointer are corrected to allow for static pressure.
Patent GB-1530464-A (GB)
Title: Gun racks
IPC: E05B73/00
Filed: 1976-07-14
Abstract: 1530464 Gun rack J H GROCOTT 14 July 1976 [16 July 1975] 29932/75 Heading A4B [Also in Division E2] A gun rack comprises a pair of plates 10, 16 having holes 12a, b ...., 24a, b .... respectively and staples 40, the ends of the limbs 42 of which are receivable in the holes and have recesses 44, the peripheral edges of the holes 24a, b .... engaging the recesses 44 so that displacement of plate 16 relative to plate 10 will retain the staples against withdrawal. The plates may be locked in the displaced position e.g. by padlock (50) engaging apertured lugs (48), Fig. 1 (not shown).
Patent GB-448980-A (GB)
Title: Improvements in fiber refining and refiners
IPC: B02C7/06
Filed: 1935-10-30
Abstract: 448,980. Disc pulverizers. SUTHERLAND, D. M., 908, North Pennsylvania Avenue, Morrisville, Lower Makefield, Pennsylvania, U.S.A. Oct. 30, 1935, No. 29978. [Class 59] Fibre pulp is refined between radially grooved discs, the clearance between the coacting surfaces and the rate of feed being such that the major portion of the material passes through the grooves and only a small portion passes between the plain surfaces, the outflow from the periphery of the discs being adjustably controlled. As shown in Fig. I, the oppositely rotating discs 10, 11 are driven by electric motors 13, 14, which may be variable speed motors. The disc 11 is adjustable toward the disc 10 by a screwed sleeve 34 operated by a worm-wheel 36 and the pulp is pressure fed through an inlet 33 and annular ring 32 in disc 10 to the removable grinding plates 27 through which it passes to outlet 24. The plates 27 are radially grooved at 71, Fig. V, and form a wide and shallow depression at the periphery, the peripheral flow of the material being regulated by adjustable plates 80 secured by bolts 81. In Fig. X, three annular rings A, B, C, with grooves are shown separated by annular depressions 84, 85. The primary grooves 71a terminate wholly or partially in the depression 84, additional grooves 91 extend across the annular ring A and others 94 only partially across, similar blind grooves 95 are shown in ring B. The peripheral flow of the pulp is regulated by grooved plates 80a. The rings A, B, C, and the peripheral rings may be in sections and reversible, the back grooving being different from that on the front. The feed is supplied by pipe 39, Fig. II, from a constant head box 40 connected by pipe 41 to pump 42. The pulp overflows a dam 48 and passes through a valve-controlled orifice 55 to the feed pipe 39, any excess pulp overflowing a partition 50 into a chamber connected to pipe 45 leading to the stuff chest 43. Steel, carborundum, cast iron or alloys with carborundum or other grit may be used for the plain rubbing surfaces of the discs.
Patent GB-716018-A (GB)
Title: Improvements in or relating to apparatus for testing the magnetic properties of ferrous magnetic material
IPC: G01R33/12
Filed: 1952-11-27
Abstract: 716,018. Electric tests. SIEMENS & HALSKE AKT.-GES. Nov. 27, 1952, [Dec. 8, 1951.] No. 30127/52. Class 37. The magnetizing flux inside a coil 2 whose core comprises material to be magnetically tested is maintained sinusoidal by connecting a choke i with a large core 3 in series with the coil 2, the resultant series current being primarily determined by the characteristics of the choke 1, and having therefore a third harmonic content which will produce the required sinusoidally varying flux in the test material. The core of the choke should preferably have the same properties as the material to be tested.
Patent GB-1461743-A (GB)
Title: Otpical display assemblage
IPC: G04G17/06
Filed: 1975-07-18
Abstract: 1461743 Alpha numeric displays RCA CORPORATION 18 July 1975 [29 July 1974] 30174/75 Heading G5C [Also in Division H2] In a liquid crystal watch, connections between a display cell 90 and integrated circuitry 14 in a cavity in plate 12 are provided by a resilient member 24 with conductors 78 on its outer surface. Each member comprises an oval rubber cylinder on a rod 74 with thin strips of Cu flash coated with Au on its surface. The members 24 are inserted in a carrier 18, the display cell with contacts on its under side is added, and a plate 22 slid over the cell and protrusions 64 on the carrier to press the cell on to the resilient members. Plate 12 is then urged against the other side of the members and secured by rivets 68. The pattern of contacts on the cell extending from display electrodes corresponds to the pattern of contacts 40 which extend from the circuitry 14. Individual contacts are connected by one or more strips 78 on the resilient members.
Patent GB-323826-A (GB)
Title: Improvements in or relating to thermionic valves of the screened grid type
IPC: H05K9/00
Filed: 1928-10-18
Abstract: 323,826. Preen, A. Oct. 18, 1928. Vacuum tubes.-An external screen for a screened-grid valve 3 consists of a large plane portion 1<a> from which opens a small box portion 1<b>, which contains one half of the valve and has an opening through which the other half extends, the screening grid being level with the top of the box portion. The box portion is just large enough to contain the lower half of the valve. The front of the box portion is slotted to receive the filament leads. The plane portion extends from top to bottom and from back to front of the casing of the set.
Patent GB-696667-A (GB)
Title: Improvements in or relating to sash balances
IPC: E05D13/00
Filed: 1951-12-27
Abstract: 696,667. Spring sash balances. STARCK, A. M. Dec. 27, 1951 [Jan. 12, 19511, No. 30201/51. Class 20(iii) [Also in Group XXXII] A dual sash balance which maintains the balance force substantially constant over the range of movement of vertically sliding sashes 14, 15 comprises an elongated sheet metal casing the upper part 17 of which is of rectangular section and houses two tension and torsion springs 19, 20, and the lower part 18 being of S-section and accommodating two spiral rods 34, 35. The pitch of the spiral on each rod increases along the rod from the top to a mid point 40, Fig. 2, and is reversed and progressively decreased toward the lower end. The rods 34, 35 pass through bushes 30, 31 fixed to the ends of the springs to twist and untwist them as they vary in length due to the raising and lowering of the sashes 14, 15, the torsional force tending to maintain the balance force of the springs substantially constant irrespective of their state of tension. A link 32. vertically slidable in a slot 22 on one side of the casing 18 and rotatably screwed to the bush 30 is adapted to loosely engage a socket 42 screwed to the lower member of the sash 14, another link 33, vertically slidable in a slot 23 on the other side of the casing being likewise connected to the bush 31 and to a socket 44 fixed to the sash 15. The socket 42 may be provided with a leg 43 to space the sash 14. when lowered, from the window sill. The upper end of each spring 19, 20 is connected to a member 21 which can be raised, or lowered, within tne casing 18 by means of a wife 27 and a rotatable spindle 28 to give the required amount of pretensioning to the springs. The member 21 is secured in the desired position by a rail or screw 25, which passes through the member 21, and through one of a series of holes 26 in the casing 17 to fasten the latter to the window frame. The springs may also be twisted a certain amount before they are engaged with the rods 34, 35. The lower part of the casing 17 is secured by a nail, or screw 36, which also connects the ends of the spiral rods to blocks 38, 39. In a balance intended for a single sliding sash for attachment to the side jambs of a window frame the casing may be either a two piece, or unitary channel-shaped member enclosing one, or a pair, of springs, or spiral rods. The casing is slotted longitudinally in the lower half. Specifications 384,534, and 670,941 are referred to.
Patent GB-879577-A (GB)
Title: Liquid applicator
IPC: A45D24/26
Filed: 1958-09-22
Abstract: 879,577. Combs. THOMAS, A. T. Sept. 20, 1959 [Sept. 22, 1958], No. 30234/58. Class 131. [Also in Groups VIII and XXIII] The stock 2 of a brush 1 is formed with integral teeth 3 that serve as a comb and passageways 6, 7 that allow of liquid being fed to some of the bristle tufts 5 for which one or more rows of bores are provided in the stock to one side of the teeth. The tufts may be replaced by pads.
Patent GB-1047174-A (GB)
Title: Process and apparatus for continuous separation of solid substances contained in a liquid
Inventor: WIEGANDT HERBERT FREDRICK
IPC: B01D11/02
Filed: 1963-07-30
Abstract: A mixture of liquid and solids is forced upwardly along a column, at least a part of which is of upwardly-increasing cross-section; liquid is withdrawn through a filter surrounding the column below the top, and solids are withdrawn from the top of the column.  Optionally, washing liquid is introduced at the top of the column for downward flow through the solids and withdrawal with the filtrate.  The process may be used to wash uranium ore in acid, the acid reacting with the uranium in the ore to give a uranate which is then separated from the acid solution.  In application to the purification of crystals, according to one embodiment, warm solution to be crystallized is injected centrally at the foot of the column into a short open-topped chamber; a cooling liquid in which the above solution is insoluble is introduced to the region around the chamber, circulates through the chamber and column foot, and is heated in the chamber (to a temperature lower than that of the solution, however), so that a rising current is established, in which crystals form and constitute the solids at the appropriate part of the column.  The washing liquid in this case is melted crystals.  In a modification of the above arrangement the chamber has a series of transverse perforated plates for dispersing the solution in the cooling liquid, and a device for generating pulses of liquid is located at the foot of the column below the solution injector.  In another embodiment a U-shaped tubular structure is provided of which the above-mentioned column constitutes one limb; the other limb is a "feed" limb.  In one form of this, the solution to be crystallized is introduced downwardly at the top of the feed limb while cooling liquid is introduced radially into the solution stream and, optionally, tangentially below the resulting liquid level.  In another form, the cooling fluid (either a compressed gas or a liquid in which the above solution is insoluble) is injected centrally downwardly to the throat of a Venturi-like device at the top of the feed limb, the solution to be crystallized being sucked in at the side.  For ordinary filtration, where the solids are of low concentration, it may be necessary to add other solid granular materials to form the bed. The washing flow of melted crystals, moving downwards, carries with it the impurities as it proceeds through the body of crystals, and is then removed through the filter: thus the further the crystals rise to the upper end of the column, the better are they purified.
Patent GB-208862-A (GB)
Title: Improvements in wringing-machines and the like
IPC: D06F45/00
Filed: 1922-11-06
Abstract: 208,862. Fairclough, W. Nov. 6, 1922. Wringers, pressure arrangements for.-Separate laminated springs 6 act on the bearing- blocks 5 at the opposite ends of the upper roller spindle and are pressed downwards by an inverted U-shaped member 7 secured to the side frames 11 of the machine. The device is particularly adapted for use with the combined wringer and washing machine described in Specification 197,035.
Patent GB-483841-A (GB)
Title: Improvements in or relating to apparatus for receiving a television or like image ona receiving screen
IPC: H01J29/89
Filed: 1936-11-06
Abstract: 483,841. Television receivers. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. Nov. 6, 1936, No. 30272. [Class 40 (in)] The reproduced image at 1 is viewed through a filter 5 to reduce the light diffused at 1 relatively to the light originating at 1. The filter 6 may discriminate to favour the wavelengths of the light originating at 1, or it may be a grey plate which is traversed twice by light diffused at 1, but only once by light originating at 1 so that this latter suffers less absorption. A shield 4 preferably surrounds the filter 5, which may be a semi-transparent mirror set at 45‹ to the surface 1. Specification 450,313, [Group XX], is referred to.
Patent GB-934059-A (GB)
Title: Trace converter for use in planimetering
IPC: G01D1/04
Filed: 1960-09-02
Abstract: 934,059. Photo-electric planimeters. FARBENFABRIKEN BAYER A.G. Sept. 2, 1960 [Sept. 3, 1959], No. 30404/60. Class 40 (3). The area under a graphical record is measured by scanning across the record, deriving a first pulse of length corresponding to the distance from the graph line to the x-axis and a second pulse corresponding to the line width, using the pulses to gate pulse trains of frequency 2f and f respectively and summing the pulses over a plurality of scans to determine the area to the midpoint of the graph line. The record, 7, Fig. 1, is scanned by a flying spot scanner along lines I and the reflected light is received by a photomultiplier which gives an output 11, Fig. 3. This output is cleaned in a Schmitt discriminator giving outputs 12, 12a. These are differentiated to give waveforms 14a, 13a which are used as trigger signals for two flip-flop circuits. These flip-flops give outputs 15-17 which are combined in coincidence circuits to give pulses 19 and 20 indicative respectively of the distance a from the reference line 7a to the curve k and the thickness I of the curve. Pulses 19 and 20 operate gates supplied with pulses at frequencies 2f and f respectively. The outputs of the gates b are integrated to give a measure of (a+-). 2
Patent GB-197619-A (GB)
Title: Improvements in and relating to apparatus for cleaning windows or for analogous purposes
IPC: A47L1/06
Filed: 1922-11-07
Abstract: 197,619. Bowring, J. B. Nov. 7, 1922. No Patent granted (Sealing fee not paid). Buildings and the like, floors, and walls, cleaning; windows, cleaning.-A cleaning device comprising cloths mounted on a frame is carried at the end of a handle 1 which takes into a bifurcated socket 2 within which is pivoted a block 6 carrying rotatably a shaft 3. Springs 8 act between the block 6 and abutments 7 on the shaft so that the joint is rendered resilient. Pivoted at the ends of the shaft are a pair of U-shaped clamps 10 and a pair of roller-carrying brackets 11, the clamps being pressed down upon the brackets by springs 12. Each bracket carries rotatably longitudinal rubber-covered rollers 17, 15 and around each pair of rollers passes loosely an endless band of cleaning material which is gripped between the clamp 10 and the longitudinal part 11<a> of the bracket 11. In use the device is immersed in water and then reciprocated over the surface to be cleaned, the looseness of the bands resulting in a combined rolling and wiping action. In normal working the rollers 17 are separate, but for wringing the bands they may be allowed to grip both bands between them and rotated bv a removable handle fixed in the end of the shaft of one roller, gear-wheels 18 transmitting the motion to the other roller, so that the water is squeezed out. In a modification the universal joint carries a flexible unjointed framework provided with rotatable rollers over which is clamped a single strip of cleaning material, the flexibility of the framework giving the combined rolling and wiping action.